Specifications
Having a built-in Super MSP (MELSEC Sequence Processor) processor which exercises optimal sequence control, high-performance model
QCPUs have been improved substantially in sequence program code conversion efficiency and processing speed. For example, index
qualification (useful for program structuring) will not cause a delay of processing time and in a large-scaled system, the CPU can rapidly run
a structured program which uses index qualification many times. Also, concurrent execution of information communication processing and
control ensures fast and stable control.
The system bus speed has been increased to shorten the total
transmission time even while communication data capacity
increases. The data transfer speed between CPU and network
modules is about 4 to 8 times higher than that of the conventional
QnA series. This increased speed can minimize the influence of
large-capacity data communication on the CPU scan time.
The high-performance model QCPU allows a CPU interrupt
program to be started up from a network or intelligent function
module. With this function, the CPU can rapidly respond to an
event that occurs asynchronously with the program scan of the
PLC, e.g. data receiving from a network or value compare of a
high-speed counter.
The Q series pulse train output/multi-axis compatible positioning modules are fit for multi-axis system that do not need complicated
control.They are effective for driving many motors at low costs.
There are 4- and 8-axis compatible modules, which can be selected to meet your system.
1. 1-axis control starts as fast as 0.1ms.
2. Tact time is reduced because of high speed tracking control
using stepping motors has reduced the chance of out-of-
synchronization to occur.
3. GX Configurator-QP (positioning module setting/monitoring
tool designed for QD70) facilitates positioning parameter
setting, positioning data creation and monitoring.
*The QD70P4/P8 is not compatible with the A/A1SD70 (analog
output).
Open collector and differential driver systems are available as command outputs to enable selection according to applications.
Many functions, e.g. preread starting function for reduction of positioning starting time, are available to ensure fast, multi-application
positioning.
GX Configurator-QP (positioning module setting/monitoring tool designed for QD75P/D) facilitates positioning parameter setting, positioning
data creation and monitoring.
High code conversion
efficiency of sequence
program
Fast execution of
index qualification
Rapid processing of
sequence program
Reducing of END
instruction
processing time
Super MSP
Sequence control
Stable scan time
during monitoring
Information processing
The high-speed type CPU in Q series family has high processing speed: basic instruction processing time is 34ns and PC MIX value is 10.3
(Note 1). It is about 5 times faster than A2USHCPU-S1CPU and about 2.7 times faster than the Q2ASHCPU.
The CPU has dramatically increased floating-point operation speeds for PID and other arithmetic functions.
* The PC MIX value is the average number of instructions such as the basic and data processing instructions executed in 1µs. A larger value indicates a higher
processing speed.
Instruction
CPU
Q00JCPU
Q00CPU
Basic Model
High-performance Model
Q01CPU Q02CPU
Q02HCPU
Q06HCPU
Q12HCPU
Q25HCPU
LD (LD X0)
OUT (OUT Y0)
Timer (OUT T0 K5)
Transfer (MOV D0 D1)
Addition (+ D0 D1)
Floating-point addition (E+)
PC MIX value
(Instruction/µs)
200ns
200ns
1100ns
700ns
1000ns
1.6
160ns
160ns
880ns
560ns
800ns
2.0
100ns
100ns
550ns
350ns
500ns
2.7
79ns
158ns
632ns
237ns
395ns
1815ns
4.4
34ns
68ns
272ns
102ns
170ns
782ns
10.3
CPU operation processing speeds
PC MIX value comparison
Q25HCPU
Q2ASHCPU
A2USHCPU-S1
PC MIX value (instruction/µs)
10.3
3.8
2.0
024681012
Q01CPU
Q00CPU
Q00JCPU
A2SHCPU
PC MIX value (instruction/µs)
2.7
2.0
1.6
0.5
01 324
5 times faster
5 times faster
High-speed bus
Data
Interrupt
Features
Open collector output/differential output
Pulse train output/multi-axis compatibility
Number of control axes
Pulse output system
QD75D1 QD75P2 QD75P4
1 2
Open collector output
QD75D2
2
Differential output
QD75D4
4
QD75P1
1
2-axis linear
2-axis circular
2-, 3-, 4-axis linear
2-axis circular
2-axis linear
2-axis circular
2-, 3-, 4-axis linear
2-axis circular
4
Type
Positioning range
Max. output pulses
Control system
Interpolation control
1,000,000 pulses/s 200,000 pulses/s
PTP control, track control, speed control, speed-position switching control, position-speed switching control
-2,147,483,648 to 2,147,483,647 (µm, inch or degree may also be used for setting)
Number of control axes
Pulse output system
QD70P4 QD70P8
4
8
Type
Positioning range
Max. output pulses
Control system
Interpolation control
Starting time
For start of 1 axis
For simultaneous start of 4 axes
For simultaneous start of 8 axes
0.1ms
0.2ms
0.4ms
200,000 pulses/s
PTP control, track control (linear only),
speed control, speed-position switching control
No
Open collector output
-2,147,483,648 to 2,147,483,647
(only pulse may be used for setting)
Concurrent Processing of CPU and Sequence-Dedicated Processor
Operation Processing Speeds
Improved Bus Performance Event Interrupt
Positioning Modules
12 13
INCREASED PERFORMANCE
AND ACCURACY OF FACILITIES
INCREASED NEW POSSIBILITIES OF
FACTORY AUTOMATION
1